Secure Networked Predictive Control Under DoS Attacks

Abstract

This chapter is concerned with DoS attacks in NCSs, which are classified as weak attacks and strong attacks. For an NCS under weak DoS attacks, a networked predictive control method is designed to actively compensate for original RTT delays induced by communication networks and additional RTT delays introduced by weak DoS attacks. For an NCS under strong DoS attacks against networked controllers or communication channels, a multi-controller switching strategy is presented based on a networked predictive control scheme, which can guarantee the closed-loop control performance even if the current controller fails to work or the communication between the controller and the plant is cut off. Practical experiments are conducted to illustrate the effectiveness of the proposed methods.